Battery pack



FIG. 1 is a perspective view of a battery pack according to the invention.

FIG. 2 is a front elevational view thereof.

FIG. 3 is a left elevational view thereof.

FIG. 4 is a right elevational view thereof; and,

FIG. 5 is a top plan view thereof.

The broken line showing is included for the purpose of illustrating environment and forms no part of the claimed design. 

The ornamental design for a battery pack, as shown and described. 